Exam 3 Flashcards

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1
Q

What are the 6 key features of qualitative research?

A
  1. inductive - rely on individual experiences
  2. to develop theory
  3. described in words/themes
  4. key issues defined by person
  5. rich in-depth information
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2
Q

What are the 4 ways of data collection for qualitative research?

A
  1. interviews
  2. focus groups
  3. journals
  4. open-ended questions on surveys
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3
Q

What are the steps to data analyses?

A

data gathered > categories > coding rules > coding accuracy > revise rules to make strong agreement > code data into categories (themes)

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4
Q

What are 4 strengths to qualitative research?

A

+ useful in exploratory research
+ understanding a specific context
+ deeper understanding of participants (hear it from them)
+ helps avoid preconceived ideas of researchers

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5
Q

What are 3 weaknesses to qualitative research?

A
  • unclear standards for data quality
  • requires sophisticated participants
  • possibility of reactivity
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6
Q

What is the goal of all research?

A

To discover a law of nature - something that’s true of behavior, thought, or emotion

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7
Q

What is a population?

A

entire group to whom we want our finding to apply

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8
Q

What is a sample?

A

part of the population chosen to represent the population (who’s being researched)

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9
Q

What is representativeness?

A

sample must be similar to population on key characteristics

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10
Q

Why is representativeness important?

A

sample is used to infer responses of the entire population

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11
Q

What is a way to improve representativeness?

A

Random sampling

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12
Q

What are the types of random sampling?

A

simple random sampling, stratified random sampling, cluster sampling

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13
Q

What is simple random sampling?

A

Each person has an equal chance of showing up in your study

ex. Clemson students’ attitudes toward physician-assisted suicide

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14
Q

What is stratified random sampling?

A

Divide population based on characteristic, then randomly sample
ex. ethnicity

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15
Q

What is cluster sampling?

A

take advantage of clusters, randomly sample w/in clusters

ex. schools within a system

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16
Q

What are the types of nonrandom sampling?

A

convenience, snowball, purposive, quota

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17
Q

What is convenience sampling?

A

Take whoever is available

argument strongest in physio, perception, cognition

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18
Q

What is the justification for convenience sampling?

A

discovering laws, not predicting population means

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19
Q

Why is non-response a problem in research?

A

potential for bias - why did people not respond? could say something about the people that responded like a shared characteristic
ex. effectiveness of mental health treatment (Consumer Reports)

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20
Q

How can researchers deal with non-response?

A

difficult to completely eliminate
try to increase response rates with reminder calls, emails
See if responders differ from overall sample on key variables

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21
Q

What are the effects of asking prior questions? For example, recalling 3 positive or negative events that were either recent or distant.

A

The findings were:
positive and recent - better well-being
negative and past - better well-being; currently better off compared to past, happier

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22
Q

How can question order affect correlation? ex. marital satisfaction and life satisfaction

A

C1: general state, marriage -> moderate correlation
C2: marriage, general state -> large correlation (primed, used marital info to form overall estimate of life satisfaction)

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23
Q

What is the purpose of statistics?

A

used to test hypothesis

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24
Q

Which measure of central tendency do you use when your data are highly skewed?

A

Median

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25
Q

Why is truncating the Y-axis misleading?

A

can make a small effect seem big

ex. effects of tutoring on test performance - one scale has wider range (0-100) and the other has smaller range (68-80)

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26
Q

How would you analyze a correlational design with two continuous variables?

A

correlation coefficient

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27
Q

How would you analyze a correlational design with one continuous and one categorical variable?

A

t-test (2 groups) or ANOVA (more than 2 groups)

28
Q

How would you analyze a correlational design with two categorical variables?

A

chi-squared

29
Q

What is a partial correlation and when is it used?

A

examining correlation b/w 2 variables after controlling for another variable
can be used to test for mediation or be sure the correlation isn’t due to a third variable

30
Q

What is a multiple regression and when do you use it?

A

when you measure more than one continuous variable and a continuous outcome

31
Q

When do you use a standard multiple regression?

A

Small number of predictors (4 or less)

32
Q

When do you use a hierarchical regression?

A

If you want to control for certain variables (eg. demographics) before testing your primary predictors

33
Q

When do you use a stepwise regression?

A

If you have 5 or more predictors

34
Q

What is the traditional approach to reviewing the literature for a meta-analysis?

A

want to get at “true” relationship, combine results from many studies
obtain effect size measure from each study to combine effects into an overall average

35
Q

Why do effects vary in meta-analysis studies?

A

samples are imperfect representations of the population

36
Q

What are the benefits to a meta-analysis?

A

more data collected from similar studies
doesn’t rely on human judgement/bias to detect patterns in literature
enables researchers to study whether certain

37
Q

How do you know if the difference between two means is not due to chance?

A

use t test
compare difference in means to measure of random error
variance best measure of random error

38
Q

What information is needed to conduct a T-test?

A

T-value, degrees freedom, significance of T-value, means

39
Q

What are the ways in which we can increase the value of our T statistic?

A

decrease error variability (ex. run test at same time each day)
drive means further apart

40
Q

What is the null hypothesis?

A

IV will not have an effect on DV

41
Q

What is the alternative hypothesis?

A

IV will have an effect on DV

42
Q

What is a directional hypothesis?

A

Means will differ in a certain direction; one-tailed test

43
Q

What is a non-directional hypothesis?

A

Means will differ in no particular direction; two-tailed test; psychologists almost always use p

44
Q

What is a Type I error?

A

say relationship is present when it really isn’t
defined by alpha level we set; lower, less likely to make error
larger p = increased risk of T1

45
Q

What is a Type II error?

A

say a relationship doesn’t exist when it really does
defined by alpha level
smaller p = increased risk of T2

46
Q

What are concerns about making Type I errors?

A
big consequences for finding significant effect (ex. drugs)
Controversial errors (ex. existence of ESP)
47
Q

What are concerns about making Type II errors?

A

missed discovery has big consequences (ex. secondhand smoke doesn’t cause lung cancer)

48
Q

What is the power of a design?

A

decreased error, strong effects, large number of sub

49
Q

When do you use an ANOVA?

A

When you’re trying to find the difference between 2 or more conditions; within-subjects (repeated measures ANOVA)

50
Q

When do you use follow up tests with an ANOVA?

A

First find whether ANOVA is significant
then find main effect - one or both of variables has 2 or more levels (post hoc)
isolate source of interaction (simple effects test)

51
Q

How can planned contrasts be more powerful than an ANOVA when you are expecting a single mean to be different from two or more means?

A

Combined comparisons between means = better test

Ex. will virgin rats show maternal behavior? - used ANOVA of experimental and group average from control groups

52
Q

What is statistical significance?

A

probability effect in our study generalizes to population

53
Q

What is magnitude of effect?

A

% of total variability due to IV
small=.02, medium=.13, large=.28
Greater number of participants = greater likelihood of significant results

54
Q

What is the main purpose of the two-way ANOVA?

A

testing the effects of two independent variables on a dependent variable

55
Q

What is the interaction effect of a two-way ANOVA?

A

effects of one IV on the DV differ depending on the level of a second IV
ex. reactions to test score as a function of relevance of course to major
“collapse across”

56
Q

What follow up analyses are needed for a two-way ANOVA?

A

if either IV has more than 2 levels and main effect significant run a follow-up test:
significant - simple effects test
compare effect of IV at each level of other IV
do one-way ANOVA for one IV at each level of second IV

57
Q

What are the key parts of the manuscript?

A

Abstract, introduction, method, results, discussion

58
Q

What does the abstract contain?

A

short, introduces what your paper will talk about

59
Q

What does the introduction contain?

A

central idea, unfold introduction, research review, hypotheses

60
Q

What does the method contain?

A

participants, materials, design, procedure

61
Q

What does the results section contain?

A

descriptive statistics, analyses, figures and tables

62
Q

What does the discussion contain?

A

Your interpretation of results, were your hypotheses supported?, future research

63
Q

What are the steps to the publication process?

A

peer review, determine appropriate journal, submission, revision, print

64
Q

What are some characteristics of a strong manuscript?

A

importance factor - extends what is known about an area
multiple experiments in a single manuscript - show replication and extension
Multiple methods - not just SR measures - use objective measures too
If correlational, have multiple time periods

65
Q

What are six tips for delivering an effective presentation?

A
  1. It’s not about you, it’s about your audience
  2. Preparing your slides - less is more
  3. Good talk - practice, be engaged with audience
  4. Be confident
  5. Stay calm, be in control of your physiology
  6. Focus on what you are going to say, rather than what you are feeling